I've been having this issue while trying to get FSXWX to run correctly, I've also run through Simconnect and that connection is established, but FSUIPC wont. Here's my install log if anyone can tell what the issue may be
Installer for FSUIPC4.DLL version 4.974
Looking in registry for FSX install path:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft Games\Flight Simulator\10.0
Parameter"SetupPath"
... >>> OK! FOUND FSX! <<< ...
SetupPath=C:\Program Files (x86)\Steam\steamapps\common\FSX
Looking in registry for FSX-SE install path:
HKEY_LOCAL_MACHINE\SOFTWARE\DovetailGames\FSX
Parameter"Install_Path"
... >>> OK! FOUND FSX-SE! <<< ...
SetupPath=C:\Program Files (x86)\Steam\steamapps\common\FSX
************ BUT this is the same path as for FSX! Will only install for FSX-SE ************
Looking in registry for Prepar3D v1 install path:
HKEY_LOCAL_MACHINE\SOFTWARE\LockheedMartin\Prepar3D
Parameter"SetupPath"
Not there, so looking in:
HKEY_CURRENT_USER\SOFTWARE\LockheedMartin\Prepar3D
Parameter"AppPath"
... NOT found! ...
Looking in registry for Prepar3D v2 install path:
HKEY_LOCAL_MACHINE\SOFTWARE\Lockheed Martin\Prepar3D v2
Parameter"SetupPath"
Not there, so looking in:
HKEY_CURRENT_USER\SOFTWARE\Lockheed Martin\Prepar3D v2
Parameter"AppPath"
... NOT found! ...
Looking in registry for Prepar3D v3 install path:
HKEY_LOCAL_MACHINE\SOFTWARE\Lockheed Martin\Prepar3D v3
Parameter"SetupPath"
Not there, so looking in:
HKEY_CURRENT_USER\SOFTWARE\Lockheed Martin\Prepar3D v3
Parameter"AppPath"
... NOT found! ...
===========================================================
INSTALLATION FOR FSX-SE:
SetupPath="C:\Program Files (x86)\Steam\steamapps\common\FSX\"
Checking version of the FSX-SE EXE:
... Version 10.0.62615.0 (Need at least 10.0.62607.0)
Checking compatibility with installed SimConnect:
Found SimConnect build 62615 (Steam)
Found SimConnect build 61259 (Acc/SP2 Oct07)
Checking if there's already a version of FSUIPC4 installed in:
C:\Program Files (x86)\Steam\steamapps\common\FSX\Modules\FSUIPC4.DLL
... No previous valid version found.
FSX-SE Modules folder already exists.
Okay -- installed FSUIPC4 into "C:\Program Files (x86)\Steam\steamapps\common\FSX\Modules\FSUIPC4.DLL"
Looking for the current user's Application Data path:
... found as "C:\Users\ehp20\AppData\Roaming"
Now finding \Microsoft\FSX-SE\FSX_SE.CFG for all users, including this one
Looking in "C:\Users\All Users\AppData\Roaming"
... No FSX_SE.CFG there
Looking in "C:\Users\Default\AppData\Roaming"
... No FSX_SE.CFG there
Looking in "C:\Users\Default User\AppData\Roaming"
... No FSX_SE.CFG there
Looking in "C:\Users\defaultuser0\AppData\Roaming"
... No FSX_SE.CFG there
Looking in "C:\Users\ehp20\AppData\Roaming"
... No FSX_SE.CFG there
Looking in "C:\Users\Public\AppData\Roaming"
... No FSX_SE.CFG there
Looking for the current user's Application Data path:
... found as "C:\Users\ehp20\AppData\Roaming"
Now finding \Microsoft\FSX-SE\FSX.CFG for all users, including this one
Looking in "C:\Users\All Users\AppData\Roaming"
... No FSX.CFG there
Looking in "C:\Users\Default\AppData\Roaming"
... No FSX.CFG there
Looking in "C:\Users\Default User\AppData\Roaming"
... No FSX.CFG there
Looking in "C:\Users\defaultuser0\AppData\Roaming"
... No FSX.CFG there
Looking in "C:\Users\ehp20\AppData\Roaming"
... No FSX.CFG there
Looking in "C:\Users\Public\AppData\Roaming"
... No FSX.CFG there
Looking for the current user's Application Data path:
... found as "C:\Users\ehp20\AppData\Roaming"
Now finding \Microsoft\FSX\FSX.CFG for all users, including this one
Looking in "C:\Users\All Users\AppData\Roaming"
... No FSX.CFG there
Looking in "C:\Users\Default\AppData\Roaming"
... No FSX.CFG there
Looking in "C:\Users\Default User\AppData\Roaming"
... No FSX.CFG there
Looking in "C:\Users\defaultuser0\AppData\Roaming"
... No FSX.CFG there
Looking in "C:\Users\ehp20\AppData\Roaming"
Found FSX.CFG in "C:\Users\ehp20\AppData\Roaming\Microsoft\FSX\FSX.CFG"
Now checking DLL.XML ...
... There is a previous DLL.XML, checking for FSUIPC4 section.
... FSUIPC4 section already exists but will be replaced.
(for FSUIPC4, without Loader)
... FSUIPC4 section of DLL.XML written okay
Now checking for a SimConnect.XML file ...
... No SimConnect.XML file found. This is okay.
Looking in "C:\Users\Public\AppData\Roaming"
... No FSX.CFG there
"Modules\FSUIPC Documents" folder created okay!
Now installing additional files into the "Modules\FSUIPC Documents" folder:
Installed "FSUIPC4 User Guide.pdf" okay
Installed "FSUIPC4 for Advanced Users.pdf" okay
Installed "FSUIPC4 History.pdf" okay
Installed "The 2016 List of FSX and P3D Controls.pdf" okay
Installed "FSUIPC Lua Library.pdf" okay
Installed "FSUIPC Lua Plug-Ins.pdf" okay
Installed "Lua License.pdf" okay
Installed "Lua Plugins for VRInsight Devices.pdf" okay
Installed "LuaFileSystem.pdf" okay
Installed "Example LUA plugins.zip" okay
Installed "ASN WX Radar facilities in FSUIPC4.pdf" okay
Installed "Offset Mapping for PMDG 737NGX.pdf" okay
Installed "Offset Mapping for PMDG 777X.pdf" okay
Installed "Offset Mapping for PMDG 747QOTSII.pdf" okay
Installed "FSUIPC4 Offsets Status.pdf" okay
Installed "Profiles in Separate Files.pdf" okay
Installed "FSUIPC4_Loader.dll" okay
===========================================================
All installer tasks completed.
Registration dialog 'not now' selected
*************** End of Install Log ***************
